package com.leet.code.lcof;

import com.algorithm.model.TreeNode;

public class Code55_1 {

    public static void main(String[] args) {
    }

    public int maxDepth(TreeNode root) {
        if (root == null) return 0;
        return 1 + Math.max(maxDepth(root.left), maxDepth(root.right));
    }


}
